The Tollgate Junction opened in 1968 as part of the A2 upgrade. The junction was originally a dumbbell-parclo hybrid. It was also very close to houses. In fact the Coastbound slips had houses on them. The old junction was fairly dangerous due to a petrol station being right on the point where traffic was joining the A2. More so in later years. By the mid 00's this junction was very unsuitable so they built a new junction just south of the original. The A2 would become D4M and the junction rebuilt into a standard dumbbell. The southern roundabout of the original hybrid junction became the northern one of the new junction. The junction took three years to rebuild and once done, the original overbridge was left in place to be a land bridge. The original Londonbound slips were abandoned while the coastbound slips were converted to be used as a service station. The same petrol station that caused many a dangerous move on the original junction.